Multiple fuse-plug.



No. 823,044. PTEEVED JUNE l2', i996. A. HEPKB @L K. DIENER. MULTPLE'FUSE PLUG,

APPLICATION FILED 1213316.19@

-. cial switching member or conductor was nec-f PATENT orrron.

ALEXANDER HEPKE -AND KURT DlENER, BERLIN, GERMANY.

MULTIPLE FUSE-PLUG.

No. 823,044. l

speieation of vLeners Patent.

Patented June 12, 1906s Application ma February 16,1905. serial No.245,900.

To t/Z whom it may concern/: j

Be it known that we, ALEXANDER HEPKE and KUR'rDinNnn, both subjects ofthe King of Prussia, German Emperor, and residents of Berlin, Kingdom ofPrussia, German Empire, have jointly invented certain new and usefulImprovements in Multiple Fuse-Plugs, of which the following is an exactspecification. Qur invention relates to improvements in electricmultiple fuse-plugs, and more especially to fuse-plugs provided with acurrenttaking-up contact-piece and Ya current-leading-off,contact-piece, both saidcontactpieces being secured to fuse-Wires. As

itherto usual, these members referred to arev carried by a movablefuse-carrier and a speessarjt to engage one of the above-mentionedcurrent-leading contact-pieces when the fusecarrier is moved in relationto the 'base-carrying the fuse-carrier.

The employment of a special switching member and the arrangement of thefusewires in a fuse-carrier movable in relation to its base have givenrise to many inconveniences, and therefore we have dispensed with theswitching member and the movable fusecarrier.

According to our invention we have mounted the fuse-wires stationarywithin the plug-body andwe have provided a current-taking-upcontact-bodymovable in relation to the plug-body respectively to the fuse-wires.

In orderto make our invention clear, reference is made .to the,accompanying drawings, in which Figure lis a vertical cross-section online YA B of Fig. 2 of a convenient form of our improved fuse-plug. Fig.2 is a top plan view of Fig. l, the upper cover being removed. Fig. 3 isa horizontal cross-section on line C D ofA Fig. 1, and Fig. 4 is a top-plan View of the current-taking-u element. f

In Fig. Ld is the p iig-body proper, consist- -ing of insulatingmaterial, such as porcelain The plug-body is providedv and the like.

with chambers c and channels f,'taking up the fuse-wires a: -Outside onthe plug-body the contact-ring b, serving for taking off the currentfrom the fuse-wires, is stationarily mounted and connected withone endofthe fuse-Wires, so that all the fuse-wires are in contact with thiscurrent-taking-oif piece.

The other ends of the fuse-wires are connect-- ed apart with smallcontact-pieces arranged in recesses g ofthe plug-bottom.

' h is the current-talring-up contact-piece,

being providedlwith a projection i, bearing against one of thecontact-,pieces e of the temporarily-used fuse-wire. This contact-pieceis movably arranged, thereby permitting a fuse-wire'to be connected ifonefuse-wire is molten. o Y

For the purpose of applying the contactpiece h to the plu -body properthe latter is provided with a ore Z, into which, a forkshapedfspring 7cprojects, secured to the contact-piece h by means of a screw.

The operation' of our improved multiple fuse-plug is lmost simple.Supposing that one fuse-plug is molten and we intend to connect thefollowing fuse-wire, there is only themecessity of screwing out theplug-body from its base or socket and of displacing the contact-piece hfrom one contact-piece e to the neXtcontact-piece e and then ofvscrewing in again the plug-body by means of the screw-ring into itsbase. By arran ing the contact-pieces e e withm recesses in t eplugbottom, into which. also-the projection al of the contact-piece hrejects, the latter is prevented `from being isplaced if the plug-bodyis screwed in its socket.

The channels c of the plug are closed at their lower ends by anyconvenient material and the whole plug is filledwith's'and, emery, andthe like and then closed at its upper end by a' cap u. The filling up ofthe plug prelvents any detrimental effect of the vapors and heatdevelopled by the melting fuses.

Having thus lly described the nature of our invention, what we desiretosecure by Letters Patent of the United States is- A multiple fuselugcomprising in combination the fuse-p ug proper, a thread-ring fixed tosaid plug-body, fuse-wires each having one end connected to saidthread-ring, contact-pieces connected to the other ends of thefuse-wires and insulated from each other.

LVI

a. current-taking-up Qontactfpece, movable in relation to the fuseWre-S,a pojeetc @n said cui1ent-taking-up piece and bearing against thetemgmraryused use-We, 3'k-shaped spring seemed to said mowdbcontacf-pece and engaging with hole in tha pugacdy, F01' the purpose setolh,

V wlmss wheleo We have hereunto sei om* Hands in the presence oftwoWitnesses.

l Y LEKANDER HPKE.

| KURT ENER.

, VWGLDEMAR HAUPT,

'HENRY HASPER,

